As four new falcons hatch from their eggs next week at University of California at Berkeley's famous bell tower, a plan has been hatched for a watch party on the campus Tuesday to celebrate the occasion. The first of four eggs of a falcon named Annie and her new mate Lou is expected to hatch sometime between 8 p.m. Monday and 5 a.m. Tuesday in a nest atop UC Berkeley's Campanile tower, where Annie has made her home for several years. That's according to Cal Falcons, the group of scientists that monitors the falcons and posts regular photos, commentary and memes about them onto social media. After Annie and her late mate Grinnell made their home in the Campanile in 2017, a crowdfunding campaign in 2019 led to the installation of two webcams that live-stream the nesting area and balcony to the public 24/7. On Tuesday, the UC Berkeley Art Museum and Pacific Film Archive (BAMPFA) is hosting a Hatch Day celebration where the falcon cam will be broadcast live from 9 a.m. to 5 p.m. for free on an outdoor screen as eggs hatch. A team of falcon experts will also share information and insights about the birds during the event.